Studies on Dry Matter Production in Corn Plant : I. Seed weight as a factor in the early vegetative growth

The effect of N and P fertilization on the dry matter content, concentration of nutrients (N, P, K, Ca and Mg) and their intake by the plant, production characteristics (achene yields, head diameter, 1000-seed weight, oil content and oil production) and the content of fatty acids (palmitic, stearic, palmitooleic, oleic, linoleic and linolenic) was evaluated in the one-year pot trial with sunflower (Helianthus annuus, L.). Nitrogen application had a positive effect on dry matter production and increased N intake by plants as early as the beginning of vegetation (4th true leaf). The effect of P on dry matter production was not markedly evident until the later growth stage (10th true leaf). At the end of the vegetation period the weight of plants of variants fertilised with N only and variants where P was applied evened out. Achene yields, head diameters, 1000-seed weight, oil content and oil production increased statistically significantly after N application. Of all the monitored characteristics the increased level of P in the soil affected only the 1000-seed weight. The application of both nutrients did not significantly change the content of fatty acids.

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Studies on Dry Matter Production in Corn Plant : II. Dry matter production of seedlings as affected by dense planting

Japanese Journal of Crop Science ◽

10.1626/jcs.42.302 ◽

1973 ◽

Vol 42 (3) ◽

pp. 302-306 ◽

Cited By ~ 1

Author(s):

Tomoshiro TAKEDA ◽

Tsuyoshi AKIYAMA

Keyword(s):

Dry Matter ◽

Dry Matter Production ◽

Corn Plant ◽

Matter Production

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EFFECT OF ORGANIC MANURES AND FOLIAR APPLICATION OF FISH AMINO ACID ON VEGETATIVE GROWTH AND DRY MATTER PRODUCTION OF AFRICAN MARIGOLD (TAGETES ERECTA L.)

PLANT ARCHIVES ◽

10.51470/plantarchives.2021.v21.s1.413 ◽

2020 ◽

Vol 21 (supplement 1) ◽

Author(s):

S. Sivasankar ◽

P. Ilakkiya ◽

S. Rameshkumar ◽

C. Muruganandam ◽

P. K . Karthikeyan

Keyword(s):

Amino Acid ◽

Vegetative Growth ◽

Dry Matter ◽

Foliar Application ◽

Dry Matter Production ◽

Tagetes Erecta ◽

Organic Manures ◽

Matter Production ◽

African Marigold ◽

Tagetes Erecta L

African marigold (Tagetes erecta L.) is one of the important commercial flower crop grown exclusively for their vibrant blooms. An experiment entitled “Effect of organic manures with foliar application of fish amino acid on growth and yield of African marigold (Tagetes erecta L.) was carried out in the department of Horticulture, Faculty of Agriculture, Annamalai University, Annamalainagar during (2018–2020). The twelve treatments includes organic inputs such as farmyard manure (25 t ha-1), vermicompost (5t ha-1), oilcake (2 t ha-1) along with foliar application of two levels of fish amino acid @ 2% and 4 % . The treatments were studied under randomized block design (RBD) with three replications. Among the twelve treatments, the performance of plants treated with (FYM @ 25t ha-1+ Vermicompost @ 5 t ha-1 + FAA @ 4%) resulted in superior plant height (63.42 cm), plant spread (54.31cm), number of primary branches (13.68), secondary branches (24.17) , number of leaves (154.86 ), dry matter production (118.23 g plant-1). Hence it is concluded that combined application of organic manures and fish amino acid had a good synergetic effect on vegetative growth of African marigold.

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Varietal Differences in the Growth and Dry-Matter Production during Vegetative Growth in Rice under Upland Cultivation Conditions with Water Stress. A comparison of Japonica, Indica and Japonica-Indica hybrid cultivars.

Japanese Journal of Crop Science ◽

10.1626/jcs.70.580 ◽

2001 ◽

Vol 70 (4) ◽

pp. 580-587 ◽

Cited By ~ 2

Author(s):

Yoshiharu WADA ◽

Maya SUZUKI ◽

San-Iku YUN ◽

Kunio MIURA ◽

Kazuyuki WATANABE

Keyword(s):

Water Stress ◽

Vegetative Growth ◽

Dry Matter ◽

Dry Matter Production ◽

Cultivation Conditions ◽

Varietal Differences ◽

Matter Production

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The impact of agronomic manipulation of early vigour in wheat on growth and yield in South Australia

Australian Journal of Agricultural Research ◽

10.1071/ar03170 ◽

2004 ◽

Vol 55 (6) ◽

pp. 645 ◽

Cited By ~ 10

Author(s):

D. H. G. Sloane ◽

G. S. Gill ◽

G. K. McDonald

Keyword(s):

Grain Yield ◽

Vegetative Growth ◽

Dry Matter ◽

Early Growth ◽

Grain Weight ◽

Dry Matter Production ◽

Matter Production ◽

Early Vigour ◽

Yield Responses ◽

The Impact

The initial growth of wheat crops can be manipulated either by agronomic means, such as by increasing inputs of seed and fertiliser, or by genetic improvement in early vigour. Cultivars of wheat with enhanced early vigour are still not commercially available and so a series of experiments was conducted to examine the impact of increasing initial dry matter production and leaf area index by increasing sowing and nitrogen (N) rates on grain yield. Increasing the sowing rate and amount of N fertiliser applied significantly increased early dry matter production and leaf area, with the largest responses occurring when sowing rate was increased. However, there was little effect on yield. The increases in dry matter production that occurred early in the season as a result of the additional inputs diminished as the season progressed. Yield responses to the additional inputs depended on the seasonal distribution of rainfall and in particular the rainfall received in August and September when grains per m2 were being determined. Consequently, yield responses were affected more by changes in grain per m2 than by changes in grain weight, and the benefits of the improvements in early vigour were only realised when moisture availability was high during the immediate pre-anthesis and early grain filling period of growth. High rainfall in August and September increased the responses in grains per m2 from increased sowing rate and N. When N was used to increase early growth, the response in grain weight was negatively correlated with increasing pre-anthesis rainfall, but there was no relationship with rainfall when sowing rate was used to increase early growth. This effect of N, in which responses in pre-anthesis growth were offset by reductions in grain weight, is consistent with the ‘haying-off’ effect that can occur with applications of N. The results showed that increasing early vigour by increased inputs of seed and N fertiliser produce variable responses in grain yield. While improvements in vegetative growth occurred, the realisation of these gains only happened when rainfall in August and September was adequate. Basing improvements in early vigour only on agronomic manipulation appears to be associated with a relatively high level of risk, as it is difficult to control the balance between vegetative growth and the availability of soil moisture. Alternatively, the data suggest that the levels of early vigour under current agronomic practices may be adequate (>50 g/m2 shoot DM at late tillering stage), and only marginal gains may be achieved by promoting early growth by additional inputs.

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